mac下面用brew安裝了php擴充套件swoole後，雖然brew這邊顯示成功安裝，但是網頁顯示異常，php -m 顯示如下

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/opt/php70-swoole/swoole.so' - dlopen(/usr/local/opt/php70-swoole/swoole.so, 9): Symbol not found: _basic_globals\n  Referenced from: /usr/local/opt/php70-swoole/swoole.so\n  Expected in: flat namespace\n in /usr/local/opt/php70-swoole/swoole.so in Unknown on line 0
 

查詢後得知可能是原包的問題，加-build-from-source 引數（從原始碼安裝）再次安裝正常。

brew reinstall php70-swoole --build-from-source